Michael Myers was a seemingly normal child who one day picked up a knife and killed his older sister. Institutionalized for many years, Michael eventually escaped on Halloween night and returned to the scene of the crime, targeting a group of teenagers, including goody-goody Laurie Strode. Michael's psychiatrist, Dr. Loomis, has since given up on Michael's rehabilitation and concluded that his patient is, indeed, pure evil that must be destroyed at all costs. This would prove to be rather difficult, as Michael killed almost everyone in his path. On Halloween night, watch out for the boogeyman, Michael Myers.